Yes, loaning would be risky when you have such a big amount. 800 BTC, Oh my god you are richest person, but to become more richer either you should start making profit by selling now when the price is stagnated and purchase when it comes down.
Thats totally a lot of bitcoins to ask for the borrower. If I'm the lender its going to be a hard time of decision and you wont make a deal that is going to make you unfavored. With this big amount there should be some collateral thats higher with the asking amount of the borrwer. This is very risky for the lender.